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Complex categorical data is often hierarchically coupled with heterogeneous relationships between attributes and attribute values and the couplings between objects. Such value-to-object couplings are heterogeneous with complementary and…

机器学习 · 计算机科学 2020-07-28 Chengzhang Zhu , Longbing Cao , Jianping Yin

We present a novel clustering objective that learns a neural network classifier from scratch, given only unlabelled data samples. The model discovers clusters that accurately match semantic classes, achieving state-of-the-art results in…

计算机视觉与模式识别 · 计算机科学 2019-08-23 Xu Ji , João F. Henriques , Andrea Vedaldi

Data preprocessing is an important component of machine learning pipelines, which requires ample time and resources. An integral part of preprocessing is data transformation into the format required by a given learning algorithm. This paper…

机器学习 · 计算机科学 2020-10-30 Nada Lavrač , Blaž Škrlj , Marko Robnik-Šikonja

This paper is intended to provide an overview of how the evaluation of standards could be applied to entity resolution, or record linkage. Data quality is of critical importance for many AI applications, and the quality of data,…

计算机与社会 · 计算机科学 2025-08-19 Julia Lane

Context. Machine-Learning (ML) solves problems by learning patterns from data, with limited or no human guidance. In Astronomy, it is mainly applied to large observational datasets, e.g. for morphological galaxy classification. Aims. We…

星系天体物理 · 物理学 2016-04-27 Mario Pasquato , Chul Chung

Clustering of time series is a well-studied problem, with applications ranging from quantitative, personalized models of metabolism obtained from metabolite concentrations to state discrimination in quantum information theory. We consider a…

最优化与控制 · 数学 2025-08-22 Mengjia Niu , Xiaoyu He , Petr Ryšavý , Quan Zhou , Jakub Marecek

Supervised classification approaches can predict labels for unknown data because of the supervised training process. The success of classification is heavily dependent on the labeled training data. Differently, clustering is effective in…

机器学习 · 计算机科学 2015-02-19 Fangfang Li , Guandong Xu , Longbing Cao

In data dominated systems and applications, a concept of representing words in a numerical format has gained a lot of attention. There are a few approaches used to generate such a representation. An interesting issue that should be…

计算与语言 · 计算机科学 2020-12-08 Shahin Atakishiyev , Marek Z. Reformat

Cluster analysis has attracted more and more attention in the field of machine learning and data mining. Numerous clustering algorithms have been proposed and are being developed due to diverse theories and various requirements of emerging…

机器学习 · 计算机科学 2016-01-18 Jian Yu , Zongben Xu

In an age of increasingly large data sets, investigators in many different disciplines have turned to clustering as a tool for data analysis and exploration. Existing clustering methods, however, typically depend on several nontrivial…

定量方法 · 定量生物学 2009-11-11 Noam Slonim , Gurinder Singh Atwal , Gasper Tkacik , William Bialek

We consider the unsupervised learning problem of assigning labels to unlabeled data. A naive approach is to use clustering methods, but this works well only when data is properly clustered and each cluster corresponds to an underlying…

机器学习 · 计算机科学 2013-05-02 Marthinus Christoffel du Plessis , Masashi Sugiyama

Most of the research on clustering ensemble focuses on designing practical consistency learning algorithms.To solve the problems that the quality of base clusters varies and the low-quality base clusters have an impact on the performance of…

机器学习 · 计算机科学 2024-11-04 Jianwen Gan , Yan Chen , Peng Zhou , Liang Du

Connecting different text attributes associated with the same entity (conflation) is important in business data analytics since it could help merge two different tables in a database to provide a more comprehensive profile of an entity.…

计算与语言 · 计算机科学 2017-02-10 Zhe Gan , P. D. Singh , Ameet Joshi , Xiaodong He , Jianshu Chen , Jianfeng Gao , Li Deng

The goal of data clustering is to partition data points into groups to minimize a given objective function. While most existing clustering algorithms treat each data point as vector, in many applications each datum is not a vector but a…

机器学习 · 统计学 2017-03-16 Dinh Phung , Ba-Ngu Bo

Analysis of data without labels is commonly subject to scrutiny by unsupervised machine learning techniques. Such techniques provide more meaningful representations, useful for better understanding of a problem at hand, than by looking only…

人工智能 · 计算机科学 2010-07-05 Jan Feyereisl , Uwe Aickelin

Person re-identification (re-ID) is an important topic in computer vision. This paper studies the unsupervised setting of re-ID, which does not require any labeled information and thus is freely deployed to new scenarios. There are very few…

计算机视觉与模式识别 · 计算机科学 2020-04-08 Yutian Lin , Lingxi Xie , Yu Wu , Chenggang Yan , Qi Tian

Entity matching (EM) identifies data records that refer to the same real-world entity. Despite the effort in the past years to improve the performance in EM, the existing methods still require a huge amount of labeled data in each domain…

机器学习 · 计算机科学 2022-04-21 Mohamed Trabelsi , Jeff Heflin , Jin Cao

Entity resolution, the task of identifying and merging records that refer to the same real-world entity, is crucial in sectors like e-commerce, healthcare, and law enforcement. Large Language Models (LLMs) introduce an innovative approach…

计算与语言 · 计算机科学 2024-09-13 Huahang Li , Longyu Feng , Shuangyin Li , Fei Hao , Chen Jason Zhang , Yuanfeng Song

Entity alignment is to find identical entities in different knowledge graphs. Although embedding-based entity alignment has recently achieved remarkable progress, training data insufficiency remains a critical challenge. Conventional…

人工智能 · 计算机科学 2022-03-15 Kexuan Xin , Zequn Sun , Wen Hua , Bing Liu , Wei Hu , Jianfeng Qu , Xiaofang Zhou

Usually considered as a classification problem, entity resolution (ER) can be very challenging on real data due to the prevalence of dirty values. The state-of-the-art solutions for ER were built on a variety of learning models (most…

数据库 · 计算机科学 2019-06-17 Boyi Hou , Qun Chen , Yanyan Wang , Youcef Nafa , Zhanhuai Li